Carton



May 2o, 1941. w. J. sans ETAL CARTON Filed March 30, 1959 l 2 Sheets-Sheetu 1 l ifa-7. E-

` l A'rroRNEYl May 20, 1941 i ifm-mans ETAL 2,242,741

CARTON Filed March 30, 1939 2 Sheets-Sheet 2 INVENTOR. W///dm Je//f ufff/2K @raw/ff@ ATTORNEYJ Patented May 20, 1941 CARTON William J. Betts and Frank H. Stowittsv, Battle Creek, Mich., assignors to Michigan Carton Company, Battle Creek, Mich., a rcorporation of Michigan Application March 30, 1939, Serial No. 265,008

8 Claims.

This invention relates to improvements in cartons.

This invention relates to paperboard cartons and has for its objects:

First, to produce a new and improved carton.

Second, to produce such a carton of the double walled type which is in the form of a, frustum of a cone.

Third, to provide such a. carton in which a reinforcing member is employed toprevent lateral bulging and lin which the cover is frictionally held by the reinforcing member and carton.

Fourth, to provide such a carton which locks securely in the set up position and in which the reinforcin-g of the carton is in part accomplished by means of the tabs which serve to hold the carton in set-up position.

Fifth, to provide such a. carton which may be set up easily and simply.

Sixth, to provide such a carton which is extremely attractive in appearance and which may be made relatively inexpensively.

Further objects pertaining to details and economies of the invention will appear from the descripton to follow.` The invention is defined in the claims.

A carton which embodies the features of the invention is clearly illustrated in the accompanying drawings, in which:

Fig. 1 is a perspective view of our improved carton, showing in dottedlines the arrangement of the reinforcing and fastening tabs which hold the carton in set up form.

Fig. 2 is a view showing the parts of the carton in position for assembly. The parts are shown in section.

Fig. 3 is a detail sectional view taken on line 3-3 of Fig. 1.

Fig. 4 is a view showing the carton in partially set-up condition.

Fig. 5 is a plan view of the blank used to form our carton.

Flaps 6 extend from the end of the outer walls and are adapted to be folded between the outerwalls 3 and the inner walls when the carton is in set-up relationship as indicated'in Fig. 3.

Substantially rectangular inner walls 1 are attached by their top edges to the free edges of the outer walls 3. The top edges are indicated at 8 and the free edges of said inner Walls at 9. Atrtached to the free edges 9 of the inner walls are spacers I0 which in the set-up carton are folded to lie along the bottom of the carton as shown in Fig. 3 to space the inner and outer walls 1 and 3.

One of the inner walls 1, which is indicated specically as |01 in Fig. 5, has a. pair of triangular tabs at both ends thereof. These tabs are located adjacent the top edge 8 of the wall Fig. 6 is a detail sectional view taken on line f 6-6 of Figs. 1 and 3.

The body portion of our carton I is shown in Fig. 5 in the form of a blank which is folded to form the body. portion. It consists of-,a rectangular or polygonal bottom 2. Outer walls 3 extend from the edges of the bottom coinciding in length with the edges at the point of attachment to the bottom, but narrowing to .their free edges 4 so that when the carton is set up with the ends of the side walls, shown at 5, in substantially coincident relationship, the outer walls form a frustum of a pyramid.

|01 and have their outer edges I2 sloped from said top edge 8 at an angle substantially equal to the angle of the slope of the outer wall in the set-up carton. The tabs terminate at a distance spaced from 'the free e'dge 9 `of the inner wall.

The next adjacent inner Wall 1 which is indicated as 201 in Fig. 5 is provided with a pair of rectangular tabs I3. These tabs arelocated adjacent the free edge 9 of the inner wall 201. They are so disposed that when the carton is set up they t under the triangular tabs I I and engage them to hold the carton in set-up position.

Each of the other inner wallsr 1 has one triangular tab corresponding to the tabs andone rectangular tab 'corresponding to the tabs I3. These tabs are disposed outwardly for engagement each with the opposite form of tab on the next adjacent inner wall as appears fully. in Fig. 5.

It will be noted that the outer wall 3 to which the wall |01 is fastened has two of the tabs 6 thereon which facilitates the assembly of the carton.

When the wall |01 andits adjacent outer 4wall 3 are bent to the position shown in Fig.A 4,'the next adjacent wall 3 on the right is then bent or folded as shown in Fig. 4. Thetabs Erarezf'enclosed between the inner wall 1 and the outer wall 3 and the rectangular tahitiy ,fitsv beneath the triangular tab II on the wall |01. Thejnext adjacent wall is then folded to fit over the tab 6 'of the just folded Wall and the assembly or set up The spacer I0 is bent under and the wall is forced to position so that the tabs I3 will fit under the triangular tab II on the adjacent sides.

It will be apparent that by using this arrangement the assembly of the carton is materially expedited. It will be noted also that the triangular tabs -I I, see Fig. 3, are so shaped lthat when the carton is assembled these tabs rest against the outer wall 3 or the flaps 6 which rest against the outer wall 3 to serve as reinforcements to prevent inward collapse of the wall. This also materially assists in holding the tabs I3 in place under and engaging the bottom edges of the tabs II.

In cutting the blank which forms the carton out of paperboard, it is necessary to have the grain of the paper run horizontally of certain of the walls and vertically of other walls. This tends to weaken the finished carton because of the ease with which the walls having the grain extending vertically thereof can be bent outwardly. In order to overcome this, we have provided a continuous liner I4 which is open at the top and bottom. rIhis liner is made up of sides I5 and I6 which correspond` in length and arrangement with the sides or inner walls of the set-up body portion of the carton. This liner is ttedinto the opening of the carton toreinforce it against lateral bulging. Much of the lateral bulging is taken up by this liner and particularly at the end portions of the side thereof which are joined together to form a continuous member.

In order to anchor the liner in place more securely, we may provide tongues I1 extending downwardly and adapted to iit into slots I8 cut in the oppositely disposed inner wall of the carton. Tongues in such case are provided on the oppositely disposed Walls of the liner. 'I'he slots I8 are cut across grain of the paperboard of the carton.

A cover I9 fitting the opening in the carton is provided. The cover may be provided with a glassine window 2q and has extending along its edges iiaps 2| which are fitted between the liner I4 and the inner walls of the carton so that the cover is held frictionally in place in the completely set up carton.

It will be apparent that the carton which we show and describe is of very attractive appearance and that it is thoroughly reinforced so as to permit the packing in it of a great variety of merchandise. It can be made inexpensively and assembled easily.

We have illustrated the invention in an embodiment which we have found practical. Other embodiments and adaptations are not shown or described as it is believed the disclosure made will enable the embodiment of the invention as may be desired.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

1. A paperboard carton comprising a polygonal bottom, outer walls extending from the edges of the bottom and narrowing to their free edges whereby when the carton is set up with the ends of the side walls substantially coinciding, the outer walls form a frustum of a, pyramid, substantially rectangular inner walls extending from the free edges of the outer walls with their top edges coinciding with said free edges, flaps extending from the ends of the outer walls to which said inner walls are fastened and adapted to lie between the inner and outer walls of the carton, spacers extending from the free edges of the inner walls and folded to lie along the bottom of the carton to space the-inner walls from the outer walls, one inner wall having triangular tabs at both ends thereof and adjacent the top edge thereof, said triangular tabs having rtheir outer edges sloping outwardly from the top edge of the inner wall at an angle substantially equal to the angle of the slope of the outer walls in the set up carton, said triangular tabs terminating at a distance from the free edge of said inner walls, the next adjacent inner wall having tabs at its ends adjacent its free edge one of which is positioned to extend under and engage one of said triangular tabs when the canton is set up. each other inner wall having at one end a triangular extension substantially identical with theaforesaid triangular extension and at the other end a tab substantially identical with the aforesaid second mentioned tabs, said triangular tabs and second mentioned tabs being disposed alternately for engagement each with the opposite form of tab on the next adjacent inner wall.

2. A paperboard canton comprising a polygonal bottom, outer walls extending from the edges of the bottom and narrowing to their free edges whereby when the carton is set up with the ends of the side walls substantially coinciding, the outer walls/form a frustum of a pyramid, substantially rectangular inner walls extending from the free edges of the outer walls with their top edges coinciding with said free edges, spacers extending from the free edges of the inner walls and folded to lie along the bottom of the carton to space the inner walls from the outer walls, one inner wall having triangular tabs at both ends thereof and adjacent the top edge thereof, said triangular tabs having their outer edgessloping outwardly from the top edge of the inner wall at an angle substantially equal to the angle of the slope of the outer Walls in'the set up carton.. said triangular tabs terminating at a distance from the free edge of said inner walls, the

next adjacent inner-wall having tabs at its ends adjacent its free edge one of which is positioned to extend under and engage one of said triangular tabs when the carton is set up, each other inner wall having at one end a triangular extension substantially identical with the aforesaid triangular extension and at the other end' a tab substantially identical with the aforesaid second mentioned tabs, said triangular tabs and second mentioned tabs being disposed alternately ,for engagement each with the opposite form of tab on the next adjacent inner wall.

3, A paperboard carton comprising a polygonal bottom, outer walls extending from the edges of the bottom and narrowing to their free edges whereby when the carton is set up with the ends of the side walls substantially coinciding, the outer walls form a frustum of a pyramid, substantially rectangular inner' walls extending from the free edges of the outer walls with their top edges coinciding with said free edges, one inner wall having triangular tabs at both ends thereof and adjacent the top edge thereof, said triangular tabs having their outer edges sloping outwardly from the top edge of the inner wall at an angle substantially equal to the angle of the slope of the outer walls in the set up carton, said triangular tabs terminating at a distance from the free edge of said inner walls, the next adjacent inner wall having tabs at its ends adjacent its free edge one of which is positioned to extend under and engage one of said triangular tabs when the carton is set up. each other inner wall having at one end a triangular extension substantially identical with the aforesaid triangular extension and at the other end a tab substantially identical with the aforesaid second mentioned tabs, said triangular itabs and second mentioned tabs being disposed alternately for engagement each with the opposite form of tab on the next adjacent inner wall.

4. A paperboard carton comprising a polygonal bottom, outer walls extending from the edges of the bottom and narrowing to their free edges whereby when the carton is set up with the ends of the side walls substantially coinciding, the outer walls form a frustum of a pyramid, substantially rectangular inner walls extending from the free edges of the outer Walls with their top edges coinciding with said free edges, triangular tabs at a -plurality of the ends of said inner walls adjacent the top edges of said walls and having their outer edges sloping outwardly from the top edges of said inner walls at an angle substantially equal to the slope of the outer walls of the set-up carton said tabs terminating at a distance from the free edges of said inner walls, tabs at the ends of said inner walls not occupied by said triangular tabs and adjacent the free edges of said inner walls 'positioned to extend under and engage said triangular tabs when the carton is set up, all of said tabs being so disposed that each triangular tab engages with one of 1 said second mentioned tabs when the carton is set up.

5. A paperboard carton comprising a polygonal bottom, outer walls extending from the edges of the bottom and narrowing to their free edges whereby when the carton is set up with the ends of the side walls substantially coinciding, the outer walls form a frustum of a pyramid, substantially rectangular innerwalls extending from the free edges of the outer walls with their top edges coinciding with said free edges, triangular tabs at a plurality of the ends of said inner walls adjacent the top edges of said walls and having their outer edges sloping outwardly from the top edges ofV said inner walls at an angle substantially equal to the slope of the outer walls of the set up carton, said tabs terminating at a distance from the free edges of said inner walls, tabs at the ends of said inner walls not occupied by said triangular. tabs and adjacent the free edges 4of said inner walls positioned to extend under and engage said triangular tabs when the carton is set up, all of said tabs being so disposed that each triangular tab engages with one of said second mentioned tabs .when the carton is set up, a continuous liner open at top and bottom and having sides corresponding in size and location to the inner walls of said carton fitted in said carton and a cover for said carton having flaps extending along the edges thereof and fitting between the inner walls of the carton and the walls of said liner.

6. A paperboard carton comprising a polygonal bottom, outer walls extending from the edges of the bottom and narrowing to their free edges whereby when the carton is set up with the ends of the side walls substantially coinciding, the outer lwalls form a frustum of a pyramid. substantially rectangular inner walls extending from the free edges of the outer walls with their top edges coinciding with said free edges, triangular tabs at a plurality of the ends of said inner walls adjacent the top edges of said Walls and having their outer edges sloping 4outwardly from the top edges oi said inner walls at an angle substantially equal to the slope of the outer walls of the set up carton, said tabs terminating at a distance from the free edges of said inner walls, tabs at the ends of said inner walls not occupied by said triangular tabs and adjacent the free edges of said inner walls positioned to extend under and engage said triangular tabs'when the carton is set up, all of said tabs being so disposed that each triangular tab engages with one of said second mentioned tabs when the carton is set up, a continuous liner open at top and bottom and having sides corresponding in size and location to the inner walls of said cartonv fitted in said carton and a cover for said carton having ilaps tting between the inner walls of the carton and the walls of said liner.

7. A paperboard carton comprising a rectangular bottom, outer walls extending from the edges of the bottom and narrowing to their free edges whereby when the carton is set up with the ends of the side walls substantially coinciding, the outer walls form a frustum of a pyramid, substantially rectangular inner walls extending from the free edges of the outer walls, spacers extending from the free edges of the linner walls and folded to lie along the bottom of the carton to space the inner walls from the outer walls, tabs of said walls to retain the carton in set up form, a continuous linerI open at the top and bottom and having sides corresponding in size and arrangement with the inner walls of the carton tted in the carton to reinforce against lateral bulging of the carton, downwardly facing tongues formed on opposite walls of said liner, slots in opposite innerwalls to receive said tongues said slots running cross grain of the paperboard of the carton, and a-cover for the carton having ilaps at its edges fitted between said liner and said inner Walls.

8. A paperboard carton comprising a rectangular bottom, outer walls extending from the edges of the bottom and narrowing to their free edges whereby when the carton is set up with the ends of the side walls substantially coinciding, the outer walls form a frustum of a pyramid, substantially rectangular inner walls extending from the free edges of the' outer walls, spacers extending fromthe free edges of the inner walls and folded to lie along the bottom of the carton to space the inner walls from the outer walls. tabs on said walls to retain the carton in set up form, a continuous liner open at the top and bottom and having sides corresponding in 4size and arrangement with the inner walls of the carton fitted in the carton to reinforce against lateral bulging of the carton, downwardly facing tongues formed on opposite walls of said liner. slots in opposite inner walls to receive said tongues, and a cover for the'carton having aps at its edges iitted between said liner and said inner walls.v

WILLIAM J. BE'x'rs. FRANK H. s'rowrrrs. 

